Q. 105.0( 1 Vote )

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Answer :

(ii) A function f(x) is said to be continuous at a point x=a of its domain, iff



Given:-


(i)


(ii) f(x) is continuous at x = 4


Using R.H.L




Using L.H.L




f(x) is continuous at x = 4



a-1=b+1=a+b


b=-1 and a=1

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